SLEIPNER E250 eVision PROPORTIONAL TUNNEL THRUSTER | 24V | 250KG/551LB THRUST | 300MM TUNNEL

SLEIPNER E250 eVision PROPORTIONAL TUNNEL THRUSTER | 24V | 250KG/551LB THRUST | 300MM TUNNEL

Command luxury vessels with unmatched endurance, zero performance fade, and next-generation 24V brushless power. The Sleipner Side-Power E250/300TC-24V represents the absolute vanguard of marine electric thruster engineering. Designed explicitly for large yachts, high-end motor cruisers, and commercial crafts from 72 to 100 feet, this premium eVision series thruster pushes an extraordinary 250 kg (551 lbs) of continuous variable thrust out of a 300mm (11.81-inch) tunnel.

At the heart of the E250 is a revolutionary 6-phase PMSM (Permanent Magnet Synchronous Motor). By completely eliminating old-fashioned mechanical brushes and integrating the motor inverter drive directly into the unit, this state-of-the-art system runs cooler, is up to 50% lighter and more compact than traditional DC motors, and achieves industry-leading runtimes that legacy DC motors simply cannot match.

Key Features:

• Next-Gen Brushless PMSM Technology: Moving away from standard brushes to an automotive-grade, 6-phase Permanent Magnet Synchronous Motor means near-infinite lifespan, zero carbon dust buildup, and maximum electrical-to-mechanical efficiency.

• Industry-Leading Runtimes & Active Cooling: Traditional DC thrusters overheat and force an automatic shutdown within a few minutes. The E250 utilizes an integrated smart inverter and an active air-cooling system to safely stretch runtimes, making it perfect for complex maneuvering and joystick/DP integrations. If thermal boundaries are pushed, it seamlessly derates power slightly rather than shutting down.

• True Proportional Power (S-Link™ Ready): Replaces harsh, loud on/off blasting with fluid variable speed control via a CAN-bus network. Apply a quiet, metered 15% nudge to counter light harbor drift, or leverage the automated "Hold" function to single-handedly pin the yacht against the slip while you safely handle mooring lines.

• Twin Counter-Rotating Q-Prop™ Propellers: Outfitted with 5-blade, aerodynamically skewed composite propellers spinning in opposite directions. This forces massive water velocity through the 300mm tunnel while reducing cabin cavitation noise and hull vibrations by up to 75%.

• Ignition Protected (ISO 8846) & IPx7 Waterproof: Completely hermetically sealed, making it safe for installation in gasoline engine bays, fuel lockers, or moist bilge spaces where standard open-frame motors present safety hazards.

• Complete Galvanic Separation: The immersed drive gearleg is entirely isolated from the vessel's onboard electrical grid. This breaks the electrical circuit, completely removing the threat of stray-current galvanic corrosion eating away your underwater gear.

• Zero Maintenance Sealed Lubrication: Features a lifetime-lubricated gearhousing protected by a heavy-duty ceramic-on-carbon mechanical seal interface, completely eliminating periodic gear oil changes.

Specifications:

• Part Number: E250/300TC-24V

• Thrust Power: 250 kg (551 lbs) variable speed output

• Typical Vessel Size: 72 to 100 Feet (22 to 30 meters)

• System Voltage: 24V DC

• Tunnel Inner Diameter: 300 mm (11.81'')

• Control System: S-Link™ Digital CAN-Bus

• Propulsion Type: Twin Counter-Rotating 5-Blade Q-Prop™

• Certifications: ISO 8846 (Ignition Protected), IPx7 (Splash-proof), CE, UKCA

Pro Tip: By integrating the variable-speed motor drive inverter directly onto the motor frame, Sleipner has eliminated the massive external controller boxes required by older variable speed setups. This drastically simplifies your wiring layout, saves engine room volume, and lightens your electrical rigging load.